Shelf Bracket to Install below Stairs

A braket to install dirktly below Stairs. To get extra Storage.
It is prepaired for 20mm shelfs and 4mm Screws (Use Screws with a flat Head).

Links = left
Rechts = right
Mitte = Center

I made it with PLA but i think ABS or PETG would be better.

Print Settings

Printer:

Geeetech A30

Rafts:

No

No

Resolution:

2,22

20%

Notes:

4 Walls to get i realy strong